[mr1303]

---

This was a total disaster here, losing 16 as I recall. I was South, who opened a precision diamond. I thought partner's 4C cue bid was a slam try agreeing diamonds, so decided to cue my ace of hearts. Partner thought I had hearts, so bid a grand in hearts. This went 5 off, as it appears most of our bidding disasters go 5 off.

Who was most to blame?

[SteveMoe]

Would start with 3♠ not 4♣. 3♠ is GF, is where the North hand is, and allows for finding a 4-4 ♥ fit if there's one to be found. After
1♦-(3♣)-3♠-(5♣)
5♠*-(P)-6♣-(P)
6♦-(P)-6♠-(P)
South is placed to make the 7-level decision.

*Since no fit shown, forcing pass is not available.

Both North and South could have bid better. 5♠ in lieu of 5♥ would allow South to make the 7-level decision. 5N looks like pick a slam. The one bid I can't understand is 7♥. I suppose North never heard "What do you call a 7-card suit headed by the AKQ? - TRUMPS!!!"

[FrancesHinden]

The problem seems to be that you haven't discussed what 4C means. What would 3S have meant over 3C?

[ggwhiz]

The 4♣ bid promises diamonds in my neck of the woods and 3♠ would have been forcing. I may be wrong but thought that would be a default agreement without discussion.

I have no idea what 5nt was meant as but might have bid 7♦ over it and suggest that north should make a natural call before the 6 level (or 7 level if I do that).

[neilkaz]

If this is an ATB, then 500% to North as I don't like any of his bids. LOL at holding 7 running ♠ and never bidding them and then pulling 6♠ to 7♥ on a presumed (he was wrong) 4-4 fit when he doesn't even know how good his PD's ♥ are. I don't like any of North's calls this hand to put it mildly.

[the_clown]

A sane auction would be

1♦-(3♣)-3♠-(5♣)
5♠-p-6♣-p
6♦-p-6♥-p
6/7♠-p-p-p

As others pointed out North had absolutely no idea what he was doing. How can you think 6♠ is void showing. I mean whats the point of showing a void when you have already forced the bidding to a grand slam? Besides bidding a grand is inconsistent with the inability to bid 6 at the last turn. You can hope partner holds -- AKxxxx AKxxxxx -- bun in this case he has misbid 5 times already.